A retrospective study on molecular epidemiology trends of carbapenem resistant Enterobacteriaceae in a teaching hospital in Malaysia

Background: Carbapenem resistant Enterobacteriaceae (CRE) has rapidly disseminated worldwide and has become a global threat to the healthcare system due to its resistance towards ``last line'' antibiotics. This study aimed to investigate the prevalence of CRE and the resistance mechanism a...

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Main Authors: Kong, Zhi Xian, Karunakaran, Rina N., Jabar, Kartini Abdul, Ponnampalavanar, Sasheela, Chong, Chun Wie, Teh, Cindy Shuan Ju
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Published: PeerJ Inc 2022
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Online Access:http://eprints.um.edu.my/33342/
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spelling my.um.eprints.333422022-08-09T06:57:00Z http://eprints.um.edu.my/33342/ A retrospective study on molecular epidemiology trends of carbapenem resistant Enterobacteriaceae in a teaching hospital in Malaysia Kong, Zhi Xian Karunakaran, Rina N. Jabar, Kartini Abdul Ponnampalavanar, Sasheela Chong, Chun Wie Teh, Cindy Shuan Ju Q Science (General) T Technology (General) Background: Carbapenem resistant Enterobacteriaceae (CRE) has rapidly disseminated worldwide and has become a global threat to the healthcare system due to its resistance towards ``last line'' antibiotics. This study aimed to investigate the prevalence of CRE and the resistance mechanism as well as the risk factors associated with in-hospital mortality. Methods: A total of 168 CRE strains isolated from a tertiary teaching hospital from 2014-2015 were included in this study. The presence of carbapenemase genes and minimum inhibitory concentration of imipenem, meropenem and colistin were investigated. All carbapenem-resistant Klebsiella pneumoniae (K. pneumoniae) strains were characterised by PFGE. The risk factors of patients infected by CRE associated with in-hospital mortality were determined statistically. Results: The predominant CRE species isolated was K. pneumoniae. The carbapenemases detected were blaOXA-48, blaOXA-232, blaVIM and blaNDM of which blaOXA-48 was the predominant carbapenemase detected among 168 CRE strains. A total of 40 CRE strains harboured two different carbapenemase genes. A total of seven clusters and 48 pulsotypes were identified among 140 CRKp strains. A predominant pulsotype responsible for the transmission from 2014 to 2015 was identified. Univariate statistical analysis identified that the period between CRE isolation and start of appropriate therapy of more than 3 days was statistically associated with in-hospital mortality. PeerJ Inc 2022-02-22 Article PeerReviewed Kong, Zhi Xian and Karunakaran, Rina N. and Jabar, Kartini Abdul and Ponnampalavanar, Sasheela and Chong, Chun Wie and Teh, Cindy Shuan Ju (2022) A retrospective study on molecular epidemiology trends of carbapenem resistant Enterobacteriaceae in a teaching hospital in Malaysia. PeerJ, 10. ISSN 2167-8359, DOI https://doi.org/10.7717/peerj.12830 <https://doi.org/10.7717/peerj.12830>. 10.7717/peerj.12830
institution Universiti Malaya
building UM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Malaya
content_source UM Research Repository
url_provider http://eprints.um.edu.my/
topic Q Science (General)
T Technology (General)
spellingShingle Q Science (General)
T Technology (General)
Kong, Zhi Xian
Karunakaran, Rina N.
Jabar, Kartini Abdul
Ponnampalavanar, Sasheela
Chong, Chun Wie
Teh, Cindy Shuan Ju
A retrospective study on molecular epidemiology trends of carbapenem resistant Enterobacteriaceae in a teaching hospital in Malaysia
description Background: Carbapenem resistant Enterobacteriaceae (CRE) has rapidly disseminated worldwide and has become a global threat to the healthcare system due to its resistance towards ``last line'' antibiotics. This study aimed to investigate the prevalence of CRE and the resistance mechanism as well as the risk factors associated with in-hospital mortality. Methods: A total of 168 CRE strains isolated from a tertiary teaching hospital from 2014-2015 were included in this study. The presence of carbapenemase genes and minimum inhibitory concentration of imipenem, meropenem and colistin were investigated. All carbapenem-resistant Klebsiella pneumoniae (K. pneumoniae) strains were characterised by PFGE. The risk factors of patients infected by CRE associated with in-hospital mortality were determined statistically. Results: The predominant CRE species isolated was K. pneumoniae. The carbapenemases detected were blaOXA-48, blaOXA-232, blaVIM and blaNDM of which blaOXA-48 was the predominant carbapenemase detected among 168 CRE strains. A total of 40 CRE strains harboured two different carbapenemase genes. A total of seven clusters and 48 pulsotypes were identified among 140 CRKp strains. A predominant pulsotype responsible for the transmission from 2014 to 2015 was identified. Univariate statistical analysis identified that the period between CRE isolation and start of appropriate therapy of more than 3 days was statistically associated with in-hospital mortality.
format Article
author Kong, Zhi Xian
Karunakaran, Rina N.
Jabar, Kartini Abdul
Ponnampalavanar, Sasheela
Chong, Chun Wie
Teh, Cindy Shuan Ju
author_facet Kong, Zhi Xian
Karunakaran, Rina N.
Jabar, Kartini Abdul
Ponnampalavanar, Sasheela
Chong, Chun Wie
Teh, Cindy Shuan Ju
author_sort Kong, Zhi Xian
title A retrospective study on molecular epidemiology trends of carbapenem resistant Enterobacteriaceae in a teaching hospital in Malaysia
title_short A retrospective study on molecular epidemiology trends of carbapenem resistant Enterobacteriaceae in a teaching hospital in Malaysia
title_full A retrospective study on molecular epidemiology trends of carbapenem resistant Enterobacteriaceae in a teaching hospital in Malaysia
title_fullStr A retrospective study on molecular epidemiology trends of carbapenem resistant Enterobacteriaceae in a teaching hospital in Malaysia
title_full_unstemmed A retrospective study on molecular epidemiology trends of carbapenem resistant Enterobacteriaceae in a teaching hospital in Malaysia
title_sort retrospective study on molecular epidemiology trends of carbapenem resistant enterobacteriaceae in a teaching hospital in malaysia
publisher PeerJ Inc
publishDate 2022
url http://eprints.um.edu.my/33342/
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score 13.211869